Adding or changing hardware modules - Arc protection - Auto synchronization - Bay control and measurement - Merging unit - Transformer protection - 2 winding - Feeder protection - Voltage regulation - Capacitor bank protection - Petersen Coil control - Grid automation - Busbar differential protection (high impedance) - Back-up protection - Motor protection - Busbar protection (voltage and frequency) - Transformer protection - 3 winding - Interconnection protection - Generator protection - Power management/Load shedding - Modification Sales Guideline - REX640 Protection and control - Relion Protection and Control - PCL4 - IEC - ANSI - 16.02.2023

REX640 Modification Sales Guideline

  1. See REX640 Hardware modification instructions (1MRS759101) for the required tools and other information related to the modification. The document is included in the delivery.
    DANGER: Disconnect the relay's auxiliary voltage and carry out modifications on a de-energized feeder.
    Note: Check the printed documentation included in the modification package delivery. Follow in detail the Relay module modification table in the Modified Product document.
  2. Replace the existing product labels with the new ones (two copies) included in the delivery.
    Note: If the delivery contains material for the modification of several relays, check the correct label based on the serial number of each relay under modification.